臺灣博碩士論文加值系統

本論文提出一新型高效率高升壓直流對直流轉換器，利用耦合電感與倍壓電路，使本轉換器具有架構簡單及高效率等優點，在較小的開關責任週期內可得到高升壓比。本文首先說明電路之動作原理，並分析此轉換器其耦合電感在不同匝數比下的效率及電壓轉換比，以得到較佳之系統參數。最後，研製一輸入電壓24 V，輸出電壓為200 V，輸出功率100 W之電路雛型，並由實驗結果驗證理論分析之可行性。

In this thesis, a novel high efficiency high step-up DC-DC converter is presented. The coupled-inductor and voltage-double circuit are integrated in the proposed converter. The power converter not only achieve high voltage ratio with appropriate duty cycle but also has advantages of simple structure and high efficiency like boost converter. The analysis of operating principle of this converter is performed at first. Then, the turn-ratio of the coupled-inductor is discussed for voltage ratio and the efficiency of the proposed converter. Finally, a prototype circuit with 24 V input voltage, 200 V output voltage and 100 W output power is implemented to verify the performance of the proposed converter.

目 錄
中文摘要．．．．．．．．．．．．．．．．．．．．．．．．．I
英文摘要．．．．．．．．．．．．．．．．．．．．．．．．．II
誌謝．．．．．．．．．．．．．．．．．．．．．．．．．．．III
目錄．．．．．．．．．．．．．．．．．．．．．．．．．．．IV
表目錄．．．．．．．．．．．．．．．．．．．．．．．．．． VI
圖目錄．．．．．．．．．．．．．．．．．．．．．．．．．VII
第一章 緒論
1.1研究背景與目的．．．．．．．．．．．．．．．．．． 1
1.2論文大綱．．．．．．．．．．．．．．．．．．．．．． 4
第二章 高升壓型轉換器
2.1傳統型升壓電路優缺點探討．．．．．．．．．．．．．． 5
2.2隔離型與非隔離型高升壓轉換器之優缺點探討．．．．．． 7
2.2.1隔離型型轉換器．．．．．．．．．．．．．．．．． 7
2.2.1.1返馳式轉換器．．．．．．．．．．．．．．．． 7
2.2.1.2順向式轉換器．．．．．．．．．．．．．．．． 9
2.2.2非隔離型轉換器．．．．．．．．．．．．．．．．． 11
2.2.2.1串級式升壓型轉換器．．．．．．．．．．．．． 11
2.2.2.2電壓提升平台式升壓型切換式轉換器．．．．．． 12
2.2.2.3切換電容式升壓型轉換器．．．．．．．．．．． 15
2.2.2.4耦合電感式升壓型轉換器．．．．．．．．．．． 16
2.2.2.5疊接式升壓型轉換器．．．．．．．．．．．．． 19
2.3討論及比較．．．．．．．．．．．．．．．．．．．．23
第三章 採用耦合電感式及倍壓電路高升壓轉換器
3.1前言．．．．．．．．．．．．．．．．．．．．．．．． 24
3.2主電路架構．．．．．．．．．．．．．．．．．．．．． 24
3.3基本動作原理．．．．．．．．．．．．．．．．．．．． 28
3.4電路穩態分析．．．．．．．．．．．．．．．．．．．． 33
3.5電感值曲線推導分析．．．．．．．．．．．．．．．．． 35
3.6穩態效率分析．．．．．．．．．．．．．．．．．．．． 42
第四章 電路設計與實驗結果分析
4.1前言．．．．．．．．．．．．．．．．．．．．．．．． 49
4.2耦合電感設計．．．．．．．．．．．．．．．．．．．． 51
4.3輸出濾波電容與穩壓電容之設計．．．．．．．．．．．． 52
4.4開關與二極體之選用．．．．．．．．．．．．．．．．． 54
4.5實驗結果以及量測波形．．．．．．．．．．．．．．．． 55
4.6效率量測．．．．．．．．．．．．．．．．．．．．．． 62
第五章 未來展望
5.1結論．．．．．．．．．．．．．．．．．．．．．．．． 65
5.2未來研究方向．．．．．．．．．．．．．．．．．．．． 65
參考文獻 ．．．．．．．．．．．．．．．．．．．．．．．．．67

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